Thanks for the tip. Upon closer inspection, I have found some inconsistencies when I ripped CDs using dBpoweramp. Some, as in the case of Ahmad Jamal, has the disc number 1 (this is 1 of 9 discs) while others, like Louis Armstrong, has the disc number / total disks: 1/9 (this too is 1 of 9 discs).
I could see the need to parse Louis Armstong (disc = 1/9) but wouldn't Ahmad Jamal (disc = 1) be okay? In fact, all of my single disc CDs failed to auto-fill the Disk # field, even through the value is in the Windows "Part of a Set" field and the MP3Tag "Discnumber" field.
I think something like Library Tools may have some promise, but I need further guidance as per my post on April 7.